It was Texas Representative Michael Burgess’ turn on the GOP’s Bullhorn of Crazy this week. “You watch a sonogram of a 15-week baby, and they have movements that are purposeful,” Burgess said during a congressional debate on the House Republican’s absolutely pointless bill outlawing abortions past 20 weeks. “They stroke their face. If they’re a male baby, they may have their hand between their legs. I mean, they feel pleasure, why is it so hard to think that they could feel pain?”

Burgess’ prenatal masturbation musing is only the tip of the melting iceberg of Republican science denial. Here are seven battier things they believe, from trees causing global warming to fetuses in your Pepsi.

1. Abortion Leads To Cancer, Birth Defects, And Everything Else

Burgess’ absurdity actually masked a very serious GOP belief. The “fetus pain” theory, which holds that fetuses begin to feel pain around 20 weeks, has been the primary logic behind a slew of recent abortion bills in state legislatures. As no reputable science backs the theory up, the GOP has been forced to find anything wearing a lab coat to make stuff up.

Abortions are rare after 21 weeks, and usually occur when a woman develops serious complications with her pregnancy. But some Republicans go so far as to think the health exemption is a cover for the abortion industry. “There’s no such exception as life of the mother, and as far as health of the mother, same thing,” Joe Walsh said in 2012 on his way to losing his House seat. “With advances in science and technology, health of the mother has become a tool for abortions for any time under any reason.” (Republicans have no problem invoking science when it suits their needs.)

Burgess is hardly alone in digging up scientific-sounding nonsense to back up his abortion views. Rick Santorum was the most recent peddler of the long-discounted theory that abortions lead to breast cancer, while out in Virginia, which has a nasty strain of abortion-based delusion, a state delegate advanced the notion that abortions lead to handicaps. “The number of children who are born subsequent to a first abortion with handicaps have increased dramatically,” Bob Marshall said. “Why? Because when you abort the firstborn of any, nature takes its vengeance on the subsequent children.”

2. Everything They Say About Rape

Burgess’ comment was notable for not featuring the word “rape,” the hook on which many right-wing legislators hang their crazy coats, to the point that Stephen Colbert has instituted a “Days Without a Rape Reference” segment.

This started with Todd Akin’s famous “legitimate rape” comment last fall, though the theory is still being repeated. Akin’s comment was so bad that even lawmakers who didn’t entirely agree with it were caught in its net: Richard Mourdock blew a gimme election in Indiana when he tripped himself trying to get away from Akin’s remark.

Like Burgess, Akin’s comment was important not because it was an aberration, but because it reflected a real belief on the right, one that’s beginning to infect policy. Arguing against a rape exemption in his anti-abortion bill last week, Trent Franks stated that the incidences of pregnancy from rape are “very low.” Some see daylight between Franks’ iteration of the rape/pregnancy connection and Akin’s, but it’s minor. And while Akin’s view was rooted in medieval medicine, Franks’ theory traces its lineage right back to Nazi experiments. Whether dealing with centuries-old pseudo-science or its bleak modern mutations, the GOP’s rape/pregnancy link is bad science at its most savage.

The least crazy of the party acknowledge climate change is occurring but refuse to link it to human behavior, instead seeing the rise in temperatures as part of a natural cycle. After all, it’s not like Hurricane Sandy was the first extreme weather event in history. “I would point out that if you’re a believer in the Bible, one would have to say the Great Flood is an example of climate change and that certainly wasn’t because mankind had overdeveloped hydrocarbon energy,” Texas congressman Joe Barton said during a House hearing on the Keystone Pipeline. (You will remember Barton from his apology to BP over the company’s oil spill.)

There’s one problem with this: refusing to link global warming to human behavior greatly reduces your options for curtailing it. See Dana Rohrabacher, a far-right California congressman, who found a natural solution to a natural problem. "Is there some thought being given to subsidizing the clearing of rainforests in order for some countries to eliminate that production of greenhouse gases?” Rohrabacher asked during a House hearing on U.N. climate policies.

This is for the Republicans who actually admit climate change exists. Many don’t, and they made sure we knew about it last year when they rejected an amendment that would have simply acknowledged the occurrence of global warming. The amendment didn’t garner a single GOP vote.

It gets worse. In 2012, North Carolina’s legislature went the full-ostrich route. Not only did they refuse to admit that global warming was happening, they actually banned scientists from researching it, passing a bill prohibiting the measurement of sea-levels so nobody could notice they were rising. (The ocean rudely rose anyway.)

4. Breast Implants, On The Other Hand, are a Fine Use Of Science

Okay, most of their science denial involves lady parts, but not all of it’s negative! Tom Coburn proves the GOP would be scientists’ best friend if those nerds would stick to expanding things men want to look at.

"I thought I would just share with you what science says today about silicone breast implants,” Coburn said during a hearing on class action lawsuits, a nagging problem for plastic surgeons. “If you have them, you're healthier than if you don't. That is what the ultimate science shows. . . . In fact, there's no science that shows that silicone breast implants are detrimental and, in fact, they make you healthier." (They don’t.)

5. No Dead Fetuses In Your Soft Drinks

But the GOP’s science permissiveness begins and ends with breasts; anything that might help with, say, medical research is off the table. Stem cells in particular give Republicans the bends. Where most see the frontier of medical research, Republican candidates for senate see islands of Dr. Moreaus.

“American scientific companies are cross-breeding humans and animals and coming up with mice with fully functioning human brains,” Christine O’Donnell told Bill O’Reilly in 2007. Talking Points Memo guessed O’Donnell was referencing an experiment in which doctors grew human brain cells within mice—“not the same as an actual functioning human brain, but a demonstration that human brain cells can be made from stem cells”—but they didn’t sound too confident speculating on her inspiration.

At least O’Donnell wasn’t actually a lawmaker. Last year, Oklahoma State Senator Ralph Shortley got wound up over a zany Internet theory claiming stem cells were being used in the production of artificial sweeteners, and proposed a bill prohibiting companies in Oklahoma from using aborted fetuses to make food.

6. Evolution Is (Still) Out To Get Jesus

“I’m not a scientist, man,” Marco Rubio recently told GQ. “I can tell you what recorded history says. I can tell you what the Bible says, but I think that’s a dispute amongst theologians. Whether the Earth was created in seven days, or seven actual eras, I’m not sure we’ll ever be able to answer that.”

But Rubio’s fellow Republicans think they have answered it, as evidenced by the fact that they want schools to teach that humans and dinosaurs used to read GQ together. Republican-controlled state legislatures have been busy trying to pass bills forcing public schools from elementary to college to teach that the world was created 6,000-9,000 years ago.

Their cover for this is the necessity of "teaching both sides” of the debate—though only one has scientific backing—but Georgia Representative Paul Broun recently showed the right’s hand. “All that stuff I was taught about evolution and embryology and Big Bang theory, all that is lies straight from the pit of hell,” he said during his (unopposed) run for reelection last year. “And it's lies to try to keep me and all the folks who are taught that from understanding that they need a savior.”

7. It’s Only Science If Republicans Agree With It

In perhaps the most unintentionally revealing law ever written by a Republican on science, Texas Representative Lamar Smith recently proposed that all scientific knowledge get his okay first. Called the “High Quality Research Act,” Smith’s bill would require any research receiving federal funds to go through Smith’s Congressional Committee on Science, Space and Technology, all in the name of “accountability.” Accountability in this case means agreeing with Smith, a climate change denier who has no problem going after projects he, or his donors, disapprove of.

If the GOP had its way, this is how all science would work: no rising sea levels to worry about, and all the breast implants Congress can afford.